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/*
 * Copyright 2013 Agorava
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.agorava.twitter;

import org.agorava.spi.UserProfileService;
import org.agorava.twitter.model.ImageSize;
import org.agorava.twitter.model.RateLimitStatus;
import org.agorava.twitter.model.SuggestionCategory;
import org.agorava.twitter.model.TwitterProfile;

import java.util.List;

/**
 * Interface defining the operations for retrieving information about Twitter users.
 *
 * @author Craig Walls
 * @author Antoine Sabot-Durand
 * @author Werner Keil
 */
public interface TwitterUserService extends UserProfileService {

    /**
     * Retrieves the authenticated user's Twitter ID.
     *
     * @return the user's ID at Twitter
     * @throws AgoravaException              if there is an error while communicating with Twitter.
     * @throws MissingAuthorizationException if TwitterTemplate was not created with OAuth credentials.
     */
    String getProfileId();

    /**
     * Retrieves the authenticated user's Twitter screen name
     *
     * @return the user's screen name
     * @throws AgoravaException              if there is an error while communicating with Twitter.
     * @throws MissingAuthorizationException if TwitterTemplate was not created with OAuth credentials.
     */
    String getScreenName();

    /**
     * Retrieves the authenticated user's Twitter profile details.
     *
     * @return a {@link TwitterProfile} object representing the user's profile.
     * @throws AgoravaException              if there is an error while communicating with Twitter.
     * @throws MissingAuthorizationException if TwitterTemplate was not created with OAuth credentials.
     */
    TwitterProfile getUserProfile();

    /**
     * Retrieves a specific user's Twitter profile details. Note that this method does not require authentication.
     *
     * @param screenName the screen name for the user whose details are to be retrieved.
     * @return a {@link TwitterProfile} object representing the user's profile.
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    TwitterProfile getUserProfile(String screenName);

    /**
     * Retrieves a specific user's Twitter profile details. Note that this method does not require authentication.
     *
     * @param userId the user ID for the user whose details are to be retrieved.
     * @return a {@link TwitterProfile} object representing the user's profile.
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    TwitterProfile getUserProfile(long userId);

    /**
     * Retrieves the user's profile image. Returns the image in Twitter's "normal" size (48px x 48px).
     *
     * @param screenName the screen name of the user
     * @return an array of bytes containing the user's profile image.
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    byte[] getUserProfileImage(String screenName);

    /**
     * Retrieves the user's profile image. Returns the image in Twitter's "normal" type.
     *
     * @param screenName the screen name of the user
     * @param size       the size of the image
     * @return an array of bytes containing the user's profile image.
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    byte[] getUserProfileImage(String screenName, ImageSize size);

    /**
     * Retrieves a list of Twitter profiles for the given list of user IDs.
     *
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    List getUsers(String... userIds);

    /**
     * Searches for up to 20 users that match a given query.
     *
     * @throws AgoravaException              if there is an error while communicating with Twitter.
     * @throws MissingAuthorizationException if TwitterTemplate was not created with OAuth credentials.
     */
    List searchForUsers(String query);

    /**
     * Searches for users that match a given query.
     *
     * @param page     the page of search results to return
     * @param pageSize the number of {@link TwitterProfile}s per page. Maximum of 20 per page.
     * @throws AgoravaException              if there is an error while communicating with Twitter.
     * @throws MissingAuthorizationException if TwitterTemplate was not created with OAuth credentials.
     */
    List searchForUsers(String query, int page, int pageSize);

    /**
     * Retrieves a list of categories from which suggested users to follow may be found.
     *
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    List getSuggestionCategories();

    /**
     * Retrieves a list of suggestions of users to follow for a given category.
     *
     * @param slug the category's slug
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    List getSuggestions(String slug);

    /**
     * Retrieves the rate limit status. Can be used with either either an authorized or unauthorized TwitterTemplate. If the
     * TwitterTemplate is authorized, the rate limits apply to the authenticated user. If the TwitterTemplate is unauthorized,
     * the rate limits apply to the IP address from with the request is made.
     */
    RateLimitStatus getRateLimitStatus();

    /**
     * Retrieves a list of Twitter profiles for the given list of screen names.
     *
     * @throws AgoravaException if there is an error while communicating with Twitter.
     */
    List getUsersByName(String... screenNames);
}